[Mr. Snrub]

just a note to the author:

A gas mask would not help you if there was a biological attack. Have you ever seen the suits the haz-mat people wear when training with the actual bio-agents ? A gas mask might be good for mustard gas or other dangerous gases, but as for other chems you're SOL.

[meenie]

The coal miners had it right. Hang your canary and his cage out in the tree. When he passes out, head for the nearest hazmat crew.